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Copy pathfs.go
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Copy pathfs.go
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112 lines (98 loc) · 3.11 KB
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/*
* Minio Cloud Storage, (C) 2015, 2016 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package main
import (
"os"
"path/filepath"
"sync"
"github.com/minio/minio/pkg/disk"
"github.com/minio/minio/pkg/probe"
)
// listObjectParams - list object params used for list object map
type listObjectParams struct {
bucket string
delimiter string
marker string
prefix string
}
// listMultipartObjectParams - list multipart object params used for list multipart object map
type listMultipartObjectParams struct {
bucket string
delimiter string
keyMarker string
prefix string
uploadIDMarker string
}
// Filesystem - local variables
type Filesystem struct {
diskPath string
minFreeDisk int64
rwLock *sync.RWMutex
listObjectMap map[listObjectParams][]*treeWalker
listObjectMapMutex *sync.Mutex
listMultipartObjectMap map[listMultipartObjectParams][]multipartObjectInfoChannel
listMultipartObjectMapMutex *sync.Mutex
}
// newFS instantiate a new filesystem.
func newFS(diskPath string) (ObjectAPI, *probe.Error) {
fs := &Filesystem{
rwLock: &sync.RWMutex{},
}
fs.diskPath = diskPath
/// Defaults
// Minium free disk required for i/o operations to succeed.
fs.minFreeDisk = 5
// Initialize list object map.
fs.listObjectMap = make(map[listObjectParams][]*treeWalker)
fs.listObjectMapMutex = &sync.Mutex{}
// Initialize list multipart map.
fs.listMultipartObjectMap = make(map[listMultipartObjectParams][]multipartObjectInfoChannel)
fs.listMultipartObjectMapMutex = &sync.Mutex{}
// Return here.
return fs, nil
}
func (fs Filesystem) checkBucketArg(bucket string) (string, error) {
if !IsValidBucketName(bucket) {
return "", BucketNameInvalid{Bucket: bucket}
}
bucket = getActualBucketname(fs.diskPath, bucket)
if status, e := isDirExist(filepath.Join(fs.diskPath, bucket)); !status {
if e == nil {
return "", BucketNotFound{Bucket: bucket}
} else if os.IsNotExist(e) {
return "", BucketNotFound{Bucket: bucket}
} else {
return "", e
}
}
return bucket, nil
}
func checkDiskFree(diskPath string, minFreeDisk int64) error {
di, e := disk.GetInfo(diskPath)
if e != nil {
return e
}
// Remove 5% from total space for cumulative disk space used for journalling, inodes etc.
availableDiskSpace := (float64(di.Free) / (float64(di.Total) - (0.05 * float64(di.Total)))) * 100
if int64(availableDiskSpace) <= minFreeDisk {
return RootPathFull{Path: diskPath}
}
return nil
}
// GetRootPath - get root path.
func (fs Filesystem) GetRootPath() string {
return fs.diskPath
}